Improvement in coal-oil stoves



zsheez--Sheem J. H. THORP.

Coal-Oil Stove.

N0. 129,436, Patenedluly 16,1872.

2 Sheets-Sheet 2.

1. H. THORP.

Coal-Oil Stove.

Patented July 16, 1872.

OFFICE.

JAMES H. Tnonr, or NEw YORK, N. Y.

IMPROVEMENT IN COAL-OIL STOVES.

Specification forming part of LettersPatent No. 129,436, dated July 16,1872.

SPECIFICATION. I, JAMES H. THORP, of the State, county, and city of NewYork, have invented certain Improvements in Coal-Oil Stoves, of whichthe following is a specification:

Nature and Object of the Intention.

next to the rods to which the toothed wheels' are attached. These tubeshave spaces between them to allow the toothed wheels to pass freely intothe oil wick-tubes for the purpose of catching hold of the wick to raiseor lower the same, as more or less heat is required in the stove. It notunfrequently happens that while the thumb-screws are being yturned toraise or lower the oil-wick on the old plan that the toothed wheelsbecome entangled in the water-wick through which they pass, which formsan obstruction to the free adjustment of the raising and loweringdevice. This feature of my invention is intended to obviate thisdifficulty. The second part of my invention relates to the use of ametallic jacket surrounding the ues or chimneys through which the flamespass, and to prevent the escape of the heat and concentrate or utilizethe same for cooking or heating purposes. This device consists of aband, cylindrical or of any other convenient shape, to rest upon thebase of thelamp, and extend above the chimneys to form a rest for thestove 'iixtures, if desirable, for light work. When it is desirable touse the cooking untensils directly on the cylinder or cas-- while thecooking is going on, without the necessity of other light than thatwithin the stove. My model shows mica in the ends of the chimneys only,whereas l desire to use the same in the sides also, if desirable. Thethird part of my invention relates to one or more openings in the topplate of the oilreservoir, to give vent to .the gases generated by heatfrom the lamp, and at the same time to serve as openings, into which ahook may be introduced to catch the oil-wicks in case they should byaccident fall beyond reach of the toothed wheel intended to raise andlower the same. These openings are formed in the upper plate of theoil-reservoir, and are surrounded by boxes which have hinged covers thatmay remain closed, under ordinary circumstances, but should it benecessary to give vent to the oil-reservoir by opening them, theexplosive vapor may pass ott' beyond the innuence of the iiame or heatfrom the lamp. The fourth part of my invention relates to the furnishingof an auxiliary lamp that may be moved around the stove to supply lightto the same, so that the attendant may be enabled to attend to her workabout thel stove at night without the aid of any other lamp. This deviceconsists of an ordinary lamp with a metallic reservoir having one oi itssides made to conform to the contour of thestoves base to which it isloosely suspended. On this side of the lamp is iirinly xed a hook,extending vertically above its reservoir, which may be hung upon theflange forming the side of the watervessel. This lamp may be moved atpleasure about the axis of the stove by simply sliding it around thesame on the iiange to which it is hooked. The auxiliary lamp is notunlike any other lamp used for illuminating purposes, with the exceptionthat one of its Vsides (the sides of the oil-receptacle) is curved inamanner to conform to the curvature of the vessel about which it isintended to'move. Its hooks k, which attach it to the rim of thewater-vessel, support it while it is being moved around said vessel orabout the stove.

Description of Drawing.

' Figure 1 is a plan view, showing the upper arrangements and generalform of heater; Fig. 2, transverse section on line w x of Fig. l; Fig.3, a detail of water-wick and cog-wh eels, &c. 5

Fig. 4, section on y y of Fig. 2; Fig. 5, elevation of perforatedcylinder; Fig. 6,Y plan of same'.

General Description.

A is the oil-reservoir, which is covered by the plate, which forms alsothe bottom of the water-vessel B, above the same. O C are theboxopenings, provided with hinged covers, which may be opened when it isnecessary to recover the wick, which may by accident have slipped fromthe teeth of the raising and lowering device; or to allow the gasgenerated by overheating of the oil while the stove is in use to escape.The rims of the boxes covering these openings extend upward beyond reachof the water in the water-vessel. a a are the oilwicks, surrounded bythe tubes Z l. These wicks are very wide, and are composed of any porousmaterial, ibrous or textile, that would be influenced by capillaryattraction. rllhese tubes have slots cut into them on one side to allowthe toothed wheels b b b topass through and engage the oil-wick, whichis to be lowered or raised to increase or diminish the flame. There areseveral of the toothed wheels arranged on rods which have attached totheir ends thumb-screws, to be handled in lowering or raising theoil-wicks. The rods to which these wheels are attached have uprightsupports secured to the bottom of the water-vessel. On the side of theoil-wick tubes l, next to the raising and lowering device, are theseries of tubes f surrounding the water-wicks, the same being open attheir bottoms, so that said wicks may be under the iniluence of thewater, as long as there is any found in the water-vessel. Thearrangement of separate tubes is, as before stated, to allow freeplayvto the toothed wheels b b b, as they perform the work of loweringand raising the oil-wicks. Oii the other side of the oil-wicks thewaterwick tubes are single, and of the ordinary form. A'

There is nothing claimed as new in the application of separate wickssurrounding the oil-wick tubes, as this device, in combination with thewater in a vessel to cool the metal influenced by the heat of the lamp,is already before the public in several forms. My object is to arrangethese wicks so that they may not be liable to entanglement with theraisingand lowering device, but to have them at the same time to answerthe full purpose of the waterwck principle.

The metal disk N, with its spaces surrounding the points wherecombustion takes place, is ofthe usual form, and is supported by legswhich rest on the bottom of the water-vessel. Chimneys D D, havingtheirhorizontal sections of the oval form, and of a reduced size attheir tops, are held in their places by a rod forming a screw-boltpassing between them vertically, the same being secured to the lowerplate N and upper plate Gr. These chimneys D D have openings d d, whichmay be closed up when necessary by mica plates which slide vertically,as shown in Fig. 4 of drawing. E is a casing, of a cylindrical or otherform, surrounding the chimneys D D, composed of metal or other material,with its inner surface polished. This cylinder is to confine andconcentrate the heat when the stove is being used for baking or otherpurposes, when it is important to utilize the greatest amount of thesame. This casing is supported on the plate N, and is kept in its placeby small anges projecting from the upper surface of said plate. Openingse are left in this cylinder, as shown in Fig. 4, so that the blaze maybe watched and regulated.. This casing may be dispensed with, ifdesirable, or adjusted at a momcnts notice, as it is not a fixed featureof the stove. H is a tube extending obliquely from the side of theoil-reservoir A, through which the oil is poured to supply thesame. Thetube has a close-ttin g cap to exclude the dust, &c. I is the smalllamp, hung to the rim of the watervessel by the hooks lo 7c, which keepit in its place as it is moved about the axis of the heater to givelight around the same.

, Claims.

What I claim as my invention, and desirev to secure by Letters Fate'nt,is-

l. The tubes f ff, arranged in combination with the toothed wheels b b,and forming spaces

